CVE-2026-23231

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: fix use-after-free in nf_tables_addchain() nf_tables_addchain() publishes the chain to table->chains via list_add_tail_rcu() (in nft_chain_add()) before registering hooks. If nf_tables_register_hook() then fails, the error path calls nft_chain_del() (list_del_rcu()) followed by nf_tables_chain_destroy() with no RCU grace period in between. This creates two use-after-free conditions: 1) Control-plane: nf_tables_dump_chains() traverses table->chains under rcu_read_lock(). A concurrent dump can still be walking the chain when the error path frees it. 2) Packet path: for NFPROTO_INET, nf_register_net_hook() briefly installs the IPv4 hook before IPv6 registration fails. Packets entering nft_do_chain() via the transient IPv4 hook can still be dereferencing chain->blob_gen_X when the error path frees the chain. Add synchronize_rcu() between nft_chain_del() and the chain destroy so that all RCU readers -- both dump threads and in-flight packet evaluation -- have finished before the chain is freed.

The Linux Kernel, the operating system core itself.

Security Fix(es):

In the Linux kernel, the following vulnerability has been resolved:

f2fs: fix to detect potential corrupted nid in free_nid_list

As reported, on-disk footer.ino and footer.nid is the same and out-of-range, let's add sanity check on f2fs_alloc_nid() to detect any potential corruption in free_nid_list.(CVE-2025-68315)

In the Linux kernel, the following vulnerability has been resolved:

ntfs3: Fix uninit buffer allocated by __getname()

Fix uninit errors caused after buffer allocation given to 'de'; by initializing the buffer with zeroes. The fix was found by using KMSAN.(CVE-2025-68727)

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nf_tables: fix use-after-free in nf_tables_addchain()

nf_tables_addchain() publishes the chain to table->chains via list_add_tail_rcu() (in nft_chain_add()) before registering hooks. If nf_tables_register_hook() then fails, the error path calls nft_chain_del() (list_del_rcu()) followed by nf_tables_chain_destroy() with no RCU grace period in between.

This creates two use-after-free conditions:

1. Control-plane: nf_tables_dump_chains() traverses table->chains under rcu_read_lock(). A concurrent dump can still be walking the chain when the error path frees it.

2. Packet path: for NFPROTO_INET, nf_register_net_hook() briefly installs the IPv4 hook before IPv6 registration fails. Packets entering nft_do_chain() via the transient IPv4 hook can still be dereferencing chain->blob_gen_X when the error path frees the chain.

Add synchronize_rcu() between nft_chain_del() and the chain destroy so that all RCU readers -- both dump threads and in-flight packet evaluation -- have finished before the chain is freed.(CVE-2026-23231)

In the Linux kernel, the following vulnerability has been resolved:

tls: Fix race condition in tls_sw_cancel_work_tx()

This issue was discovered during a code audit.

After cancel_delayed_work_sync() is called from tls_sk_proto_close(), tx_work_handler() can still be scheduled from paths such as the Delayed ACK handler or ksoftirqd. As a result, the tx_work_handler() worker may dereference a freed TLS object.

The following is a simple race scenario:

      cpu0                         cpu1

tls_sk_proto_close() tls_sw_cancel_work_tx() tls_write_space() tls_sw_write_space() if (!test_and_set_bit(BIT_TX_SCHEDULED, &tx_ctx->tx_bitmask)) set_bit(BIT_TX_SCHEDULED, &ctx->tx_bitmask); cancel_delayed_work_sync(&ctx->tx_work.work); schedule_delayed_work(&tx_ctx->tx_work.work, 0);

To prevent this race condition, cancel_delayed_work_sync() is replaced with disable_delayed_work_sync().(CVE-2026-23240)

In the Linux kernel, the following vulnerability has been resolved:

net/sched: act_gate: snapshot parameters with RCU on replace

The gate action can be replaced while the hrtimer callback or dump path is walking the schedule list.

Convert the parameters to an RCU-protected snapshot and swap updates under tcf_lock, freeing the previous snapshot via call_rcu(). When REPLACE omits the entry list, preserve the existing schedule so the effective state is unchanged.(CVE-2026-23245)

In the Linux kernel, the following vulnerability has been resolved:

net: gro: fix outer network offset

The udp GRO complete stage assumes that all the packets inserted the RX have the encapsulation flag zeroed. Such assumption is not true, as a few H/W NICs can set such flag when H/W offloading the checksum for an UDP encapsulated traffic, the tun driver can inject GSO packets with UDP encapsulation and the problematic layout can also be created via a veth based setup.

Due to the above, in the problematic scenarios, udp4_gro_complete() uses the wrong network offset (inner…

The Linux Kernel, the operating system core itself.

Security Fix(es):

In the Linux kernel, the following vulnerability has been resolved:

f2fs: fix to detect potential corrupted nid in free_nid_list

As reported, on-disk footer.ino and footer.nid is the same and out-of-range, let's add sanity check on f2fs_alloc_nid() to detect any potential corruption in free_nid_list.(CVE-2025-68315)

In the Linux kernel, the following vulnerability has been resolved:

ntfs3: Fix uninit buffer allocated by __getname()

Fix uninit errors caused after buffer allocation given to 'de'; by initializing the buffer with zeroes. The fix was found by using KMSAN.(CVE-2025-68727)

In the Linux kernel, a security vulnerability exists in the IOMMU Shared Virtual Addressing (SVA) feature. On x86 architecture when CONFIG_X86 is set, IOMMU hardware caches kernel page table entries. Due to the lack of notification mechanism for kernel page table changes, when kernel page table pages are freed and reused, the IOMMU may retain stale entries, leading to Use-After-Free (UAF) and Write-After-Free (WAF) conditions. This can be exploited to cause arbitrary physical memory DMA access or privilege escalation.(CVE-2025-71089)

In the Linux kernel, the following vulnerability has been resolved:

uacce: fix cdev handling in the cleanup path

When cdev_device_add fails, it internally releases the cdev memory, and if cdev_device_del is then executed, it will cause a hang error. To fix it, we check the return value of cdev_device_add() and clear uacce->cdev to avoid calling cdev_device_del in the uacce_remove.(CVE-2026-23096)

In the Linux kernel, the following vulnerability has been resolved:

bonding: fix use-after-free due to enslave fail after slave array update

Fix a use-after-free which happens due to enslave failure after the new slave has been added to the array. Since the new slave can be used for Tx immediately, we can use it after it has been freed by the enslave error cleanup path which frees the allocated slave memory. Slave update array is supposed to be called last when further enslave failures are not expected. Move it after xdp setup to avoid any problems.

It is very easy to reproduce the problem with a simple xdp_pass prog: ip l add bond1 type bond mode balance-xor ip l set bond1 up ip l set dev bond1 xdp object xdp_pass.o sec xdp_pass ip l add dumdum type dummy

Then run in parallel: while :; do ip l set dumdum master bond1 1>/dev/null 2>&1; done; mausezahn bond1 -a own -b rand -A rand -B 1.1.1.1 -c 0 -t tcp "dp=1-1023, flags=syn"

The crash happens almost immediately: [ 605.602850] Oops: general protection fault, probably for non-canonical address 0xe0e6fc2460000137: 0000 [#1] SMP KASAN NOPTI [ 605.602916] KASAN: maybe wild-memory-access in range [0x07380123000009b8-0x07380123000009bf] [ 605.602946] CPU: 0 UID: 0 PID: 2445 Comm: mausezahn Kdump: loaded Tainted: G B 6.19.0-rc6+ #21 PREEMPT(voluntary) [ 605.602979] Tainted: [B]=BAD_PAGE [ 605.602998] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 605.603032] RIP: 0010:netdev_core_pick_tx+0xcd/0x210 [ 605.603063] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 3e 01 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 6b 08 49 8d 7d 30 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 25 01 00 00 49 8b 45 30 4c 89 e2 48 89 ee 48 89 [ 605.603111] RSP: 0018:ffff88817b9af348 EFLAGS: 00010213 [ 605.603145] RAX: dffffc0000000000 RBX: ffff88817d28b420 RCX: 0000000000000000 [ 605.603172] RDX: 00e7002460000137 RSI: 0000000000000008 RDI: 07380123000009be [ 605.603199] RBP: ffff88817b541a00 R08: 0000000000000001 R09: fffffbfff3ed8c0c [ 605.603226] R10: ffffffff9f6c6067 R11: 0000000000000001 R12: 0000000000000000 [ 605.603253] R13: 073801230000098e R14: ffff88817d28b448 R15: ffff88817b541a84 [ 605.603286] FS: 00007f6570ef67c0(0000) GS:ffff888221dfa000(0000) knlGS:0000000000000000 [ …

The Linux Kernel, the operating system core itself.

Security Fix(es):

In the Linux kernel, the following vulnerability has been resolved:

f2fs: fix to detect potential corrupted nid in free_nid_list

As reported, on-disk footer.ino and footer.nid is the same and out-of-range, let's add sanity check on f2fs_alloc_nid() to detect any potential corruption in free_nid_list.(CVE-2025-68315)

In the Linux kernel, the following vulnerability has been resolved:

ntfs3: Fix uninit buffer allocated by __getname()

Fix uninit errors caused after buffer allocation given to 'de'; by initializing the buffer with zeroes. The fix was found by using KMSAN.(CVE-2025-68727)

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nf_tables: fix use-after-free in nf_tables_addchain()

nf_tables_addchain() publishes the chain to table->chains via list_add_tail_rcu() (in nft_chain_add()) before registering hooks. If nf_tables_register_hook() then fails, the error path calls nft_chain_del() (list_del_rcu()) followed by nf_tables_chain_destroy() with no RCU grace period in between.

This creates two use-after-free conditions:

1. Control-plane: nf_tables_dump_chains() traverses table->chains under rcu_read_lock(). A concurrent dump can still be walking the chain when the error path frees it.

2. Packet path: for NFPROTO_INET, nf_register_net_hook() briefly installs the IPv4 hook before IPv6 registration fails. Packets entering nft_do_chain() via the transient IPv4 hook can still be dereferencing chain->blob_gen_X when the error path frees the chain.

Add synchronize_rcu() between nft_chain_del() and the chain destroy so that all RCU readers -- both dump threads and in-flight packet evaluation -- have finished before the chain is freed.(CVE-2026-23231)

In the Linux kernel, the following vulnerability has been resolved:

tls: Fix race condition in tls_sw_cancel_work_tx()

This issue was discovered during a code audit.

After cancel_delayed_work_sync() is called from tls_sk_proto_close(), tx_work_handler() can still be scheduled from paths such as the Delayed ACK handler or ksoftirqd. As a result, the tx_work_handler() worker may dereference a freed TLS object.

The following is a simple race scenario:

      cpu0                         cpu1

tls_sk_proto_close() tls_sw_cancel_work_tx() tls_write_space() tls_sw_write_space() if (!test_and_set_bit(BIT_TX_SCHEDULED, &tx_ctx->tx_bitmask)) set_bit(BIT_TX_SCHEDULED, &ctx->tx_bitmask); cancel_delayed_work_sync(&ctx->tx_work.work); schedule_delayed_work(&tx_ctx->tx_work.work, 0);

To prevent this race condition, cancel_delayed_work_sync() is replaced with disable_delayed_work_sync().(CVE-2026-23240)

In the Linux kernel, the following vulnerability has been resolved:

net/sched: act_gate: snapshot parameters with RCU on replace

The gate action can be replaced while the hrtimer callback or dump path is walking the schedule list.

Convert the parameters to an RCU-protected snapshot and swap updates under tcf_lock, freeing the previous snapshot via call_rcu(). When REPLACE omits the entry list, preserve the existing schedule so the effective state is unchanged.(CVE-2026-23245)

In the Linux kernel, the following vulnerability has been resolved:

net: gro: fix outer network offset

The udp GRO complete stage assumes that all the packets inserted the RX have the encapsulation flag zeroed. Such assumption is not true, as a few H/W NICs can set such flag when H/W offloading the checksum for an UDP encapsulated traffic, the tun driver can inject GSO packets with UDP encapsulation and the problematic layout can also be created via a veth based setup.

Due to the above, in the problematic scenarios, udp4_gro_complete() uses the wrong network offset (inner…

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: kernel: Privilege escalation or denial of service via use-after-free in nf_tables_addchain() (CVE-2026-23231)

• kernel: Linux kernel (qla2xxx): Double free vulnerability leads to denial of service and potential privilege escalation. (CVE-2025-71238)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: Linux kernel (net/mlx5): Use-after-free in ECVF vports unload leads to denial of service (CVE-2025-38109)

• kernel: Kernel: Privilege escalation or denial of service in nf_tables via inverted element activity check (CVE-2026-23111)

• kernel: Linux kernel: Denial of Service in ice driver due to race condition during VSI rebuild (CVE-2026-23210)

• kernel: kernel: Privilege escalation or denial of service via use-after-free in nf_tables_addchain() (CVE-2026-23231)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: nouveau: fix instmem race condition around ptr stores (CVE-2024-26984)

• kernel: scsi: target: iscsi: Fix use-after-free in iscsit_dec_session_usage_count() (CVE-2026-23193)

• kernel: kernel: Privilege escalation or denial of service via use-after-free in nf_tables_addchain() (CVE-2026-23231)

• kernel: Linux kernel (qla2xxx): Double free vulnerability leads to denial of service and potential privilege escalation. (CVE-2025-71238)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

• kernel: nouveau: fix instmem race condition around ptr stores (CVE-2024-26984)

• kernel: scsi: target: iscsi: Fix use-after-free in iscsit_dec_session_usage_count() (CVE-2026-23193)

• kernel: kernel: Privilege escalation or denial of service via use-after-free in nf_tables_addchain() (CVE-2026-23231)

• kernel: Linux kernel (qla2xxx): Double free vulnerability leads to denial of service and potential privilege escalation. (CVE-2025-71238)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Root has patched CVE-2026-23231 in the linux package for Root:Debian:11. Multiple fixed versions available.

Root has patched CVE-2026-23231 in the linux package for Root:Debian:12. Multiple fixed versions available.

Root has patched CVE-2026-23231 in the linux package for Root:Debian:13. Multiple fixed versions available.

Root has patched CVE-2026-23231 in the linux package for Root:Ubuntu:22.04. Multiple fixed versions available.

Root has patched CVE-2026-23231 in the linux package for Root:Ubuntu:24.04. Multiple fixed versions available.

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: fix use-after-free in nf_tables_addchain() nf_tables_addchain() publishes the chain to table->chains via list_add_tail_rcu() (in nft_chain_add()) before registering hooks. If nf_tables_register_hook() then fails, the error path calls nft_chain_del() (list_del_rcu()) followed by nf_tables_chain_destroy() with no RCU grace period in between. This creates two use-after-free conditions: 1) Control-plane: nf_tables_dump_chains() traverses table->chains under rcu_read_lock(). A concurrent dump can still be walking the chain when the error path frees it. 2) Packet path: for NFPROTO_INET, nf_register_net_hook() briefly installs the IPv4 hook before IPv6 registration fails. Packets entering nft_do_chain() via the transient IPv4 hook can still be dereferencing chain->blob_gen_X when the error path frees the chain. Add synchronize_rcu() between nft_chain_del() and the chain destroy so that all RCU readers -- both dump threads and in-flight packet evaluation -- have finished before the chain is freed.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: kernel: Privilege escalation or denial of service via use-after-free in nf_tables_addchain() (CVE-2026-23231)
• kernel: Linux kernel (qla2xxx): Double free vulnerability leads to denial of service and potential privilege escalation. (CVE-2025-71238)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: Linux kernel (net/mlx5): Use-after-free in ECVF vports unload leads to denial of service (CVE-2025-38109)
• kernel: Kernel: Privilege escalation or denial of service in nf_tables via inverted element activity check (CVE-2026-23111)
• kernel: Linux kernel: Denial of Service in ice driver due to race condition during VSI rebuild (CVE-2026-23210)
• kernel: kernel: Privilege escalation or denial of service via use-after-free in nf_tables_addchain() (CVE-2026-23231)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: nouveau: fix instmem race condition around ptr stores (CVE-2024-26984)
• kernel: scsi: target: iscsi: Fix use-after-free in iscsit_dec_session_usage_count() (CVE-2026-23193)
• kernel: kernel: Privilege escalation or denial of service via use-after-free in nf_tables_addchain() (CVE-2026-23231)
• kernel: Linux kernel (qla2xxx): Double free vulnerability leads to denial of service and potential privilege escalation. (CVE-2025-71238)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

• kernel: nouveau: fix instmem race condition around ptr stores (CVE-2024-26984)
• kernel: scsi: target: iscsi: Fix use-after-free in iscsit_dec_session_usage_count() (CVE-2026-23193)
• kernel: kernel: Privilege escalation or denial of service via use-after-free in nf_tables_addchain() (CVE-2026-23231)
• kernel: Linux kernel (qla2xxx): Double free vulnerability leads to denial of service and potential privilege escalation. (CVE-2025-71238)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nf_tables: fix use-after-free in nf_tables_addchain()

nf_tables_addchain() publishes the chain to table->chains via list_add_tail_rcu() (in nft_chain_add()) before registering hooks. If nf_tables_register_hook() then fails, the error path calls nft_chain_del() (list_del_rcu()) followed by nf_tables_chain_destroy() with no RCU grace period in between.

This creates two use-after-free conditions:

1. Control-plane: nf_tables_dump_chains() traverses table->chains under rcu_read_lock(). A concurrent dump can still be walking the chain when the error path frees it.

2. Packet path: for NFPROTO_INET, nf_register_net_hook() briefly installs the IPv4 hook before IPv6 registration fails. Packets entering nft_do_chain() via the transient IPv4 hook can still be dereferencing chain->blob_gen_X when the error path frees the chain.

Add synchronize_rcu() between nft_chain_del() and the chain destroy so that all RCU readers -- both dump threads and in-flight packet evaluation -- have finished before the chain is freed.

• crypto: algif_aead - Fix minimum RX size check for decryption {CVE-2026-31431}
• crypto: af_alg - Fix page reassignment overflow in af_alg_pull_tsgl {CVE-2026-31431}
• crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec {CVE-2026-31431}
• crypto: authencesn - Fix src offset when decrypting in-place {CVE-2026-31431}
• crypto: authencesn - Do not place hiseq at end of dst for out-of-place decryption {CVE-2026-31431}
• crypto: authenc - use memcpy_sglist() instead of null skcipher {CVE-2026-31431}
• crypto: algif_aead - snapshot IV for async AEAD requests {CVE-2026-31431}
• crypto: algif_aead - Revert to operating out-of-place {CVE-2026-31431}
• crypto: algif_aead - use memcpy_sglist() instead of null skcipher {CVE-2026-31431}
• crypto: scatterwalk - Backport memcpy_sglist() {CVE-2026-31431}
• scsi: target: iscsi: Fix use-after-free in iscsit_dec_conn_usage_count() {CVE-2026-23216}
• VMCI: Fix use-after-free when removing resource in vmci_resource_remove() {CVE-2024-46738}
• ptp: fix integer overflow in max_vclocks_store {CVE-2024-40994}
• xsk: Fix xsk_diag use-after-free error during socket cleanup {CVE-2023-53426}
• net: hns3: add VLAN id validation before using {CVE-2025-71112}
• scsi: qla2xxx: Fix improper freeing of purex item {CVE-2025-68741}
• tracing: Consider the NULL character when validating the event length {CVE-2024-50131}
• capabilities: fix undefined behavior in bit shift for CAP_TO_MASK {CVE-2022-49870}
• scsi: libsas: Fix use-after-free bug in smp_execute_task_sg() {CVE-2022-50422}
• netfilter: nf_tables: fix inverted genmask check in nft_map_catchall_activate() {CVE-2026-23111}
• team: fix check for port enabled in team_queue_override_port_prio_changed() {CVE-2025-71091}
• i2c: piix4: Fix adapter not be removed in piix4_remove() {CVE-2022-49900}
• libceph: replace overzealous BUG_ON in osdmap_apply_incremental() {CVE-2026-22990}
• RDMA/mlx5: Initialize obj_event->obj_sub_list before xa_insert {CVE-2025-38387}
• ACPICA: Refuse to evaluate a method if arguments are missing {CVE-2025-38386}
• drm/tegra: Fix a possible null pointer dereference {CVE-2025-38363}
• ACPICA: fix acpi operand cache leak in dswstate.c {CVE-2025-38345}
• ACPICA: fix acpi parse and parseext cache leaks {CVE-2025-38344}
• jbd2: fix data-race and null-ptr-deref in jbd2_journal_dirty_metadata() {CVE-2025-38337}
• x86/sgx: Prevent attempts to reclaim poisoned pages {CVE-2025-38334}
• mpls: Use rcu_dereference_rtnl() in mpls_route_input_rcu(). {CVE-2025-38324}
• drm/amd/pp: Fix potential NULL pointer dereference in atomctrl_initialize_mc_reg_table {CVE-2025-38319}
• fbdev: core: fbcvt: avoid division by 0 in fb_cvt_hperiod() {CVE-2025-38312}
• seg6: Fix validation of nexthop addresses {CVE-2025-38310}
• bpf: Fix WARN() in get_bpf_raw_tp_regs {CVE-2025-38285}
• atm: clip: prevent NULL deref in clip_push() {CVE-2025-38251}
• nfsd: Initialize ssc before laundromat_work to prevent NULL dereference {CVE-2025-38231}
• ext4: inline: fix len overflow in ext4_prepare_inline_data {CVE-2025-38222}
• fbdev: Fix do_register_framebuffer to prevent null-ptr-deref in fb_videomode_to_var {CVE-2025-38215}
• fbdev: Fix fb_set_var to prevent null-ptr-deref in fb_videomode_to_var {CVE-2025-38214}
• atm: Revert atm_account_tx() if copy_from_iter_full() fails. {CVE-2025-38190}
• tipc: fix null-ptr-deref when acquiring remote ip of ethernet bearer {CVE-2025-38184}
• calipso: Fix null-ptr-deref in calipso_req_{set,del}attr(). {CVE-2025-38181}
• thunderbolt: Do not double dequeue a configuration request {CVE-2025-38174}
• bpf: fix ktls panic with sockmap {CVE-2025-38166}
• gve: add missing NULL check for gve_alloc_pending_packet() in TX DQO {CVE-2025-38122}
• net_sched: sch_sfq: fix a potential crash on gso_skb handling {CVE-2025-38115}
• x86/iopl: Cure TIF_IO_BITMAP inconsistencies {CVE-2025-38100}
• dma-buf: insert memory barrier before updating num_fences {CVE-2025-38095}
• net_sched: prio: fix a race in prio_tune() {CVE-2025-38083} -…

• Bump kernel ABI to 29: ship the ELS kernel as 4.19.0-29-*, distinct from the prior 4.19.0-28.
• CVE-2021-46984
  • kyber: fix out of bounds access when preempted {CVE-2021-46984}
• CVE-2021-47049
  • Drivers: hv: vmbus: Use after free in __vmbus_open() {CVE-2021-47049}
• CVE-2021-47101
  • asix: fix uninit-value in asix_mdio_read() {CVE-2021-47101}
• CVE-2021-47191
  • scsi: scsi_debug: Fix out-of-bound read in resp_readcap16() {CVE-2021-47191}
• CVE-2021-47352
  • virtio-net: Add validation for used length {CVE-2021-47352}
• CVE-2021-47379
  • blk-cgroup: fix UAF by grabbing blkcg lock before destroying blkg pd {CVE-2021-47379}
• CVE-2021-47391
  • RDMA/cma: Ensure rdma_addr_cancel() happens before issuing more requests {CVE-2021-47391}
• CVE-2021-47479
  • staging: rtl8712: fix use-after-free in rtl8712_dl_fw {CVE-2021-47479}
• CVE-2022-21546
  • scsi: target: Fix WRITE_SAME No Data Buffer crash {CVE-2022-21546}
• CVE-2022-39189
  • KVM: x86: do not report a vCPU as preempted outside instruction boundaries {CVE-2022-39189}
• CVE-2022-43945
  • SUNRPC: Fix svcxdr_init_encode's buflen calculation {CVE-2022-43945}
  • NFSD: Cap rsize_bop result based on send buffer size {CVE-2022-43945}
• CVE-2022-48744
  • net/mlx5e: Avoid field-overflowing memcpy() {CVE-2022-48744}
• CVE-2022-49026
  • e100: Fix possible use after free in e100_xmit_prepare {CVE-2022-49026}
• CVE-2022-49720
  • block: Fix handling of offline queues in blk_mq_alloc_request_hctx() {CVE-2022-49720}
• CVE-2022-49975
  • bpf: Don't redirect packets with invalid pkt_len {CVE-2022-49975}
  • bpf: Move skb->len == 0 checks into __bpf_redirect {CVE-2022-49975}
• CVE-2022-50066
  • net: atlantic: fix aq_vec index out of range error {CVE-2022-50066}
• CVE-2022-50103
  • sched, cpuset: Fix dl_cpu_busy() panic due to empty cs->cpus_allowed {CVE-2022-50103}
• CVE-2022-50129
  • RDMA/srpt: Introduce a reference count in struct srpt_device {CVE-2022-50129}
  • RDMA/srpt: Fix a use-after-free {CVE-2022-50129}
• CVE-2022-50300
  • btrfs: fix extent map use-after-free when handling missing device in read_one_chunk {CVE-2022-50300}
• CVE-2022-50406
  • iomap: iomap: fix memory corruption when recording errors during writeback {CVE-2022-50406}
• CVE-2022-50422
  • scsi: libsas: Fix use-after-free bug in smp_execute_task_sg() {CVE-2022-50422}
• CVE-2022-50552
  • blk-mq: use quiesced elevator switch when reinitializing queues {CVE-2022-50552}
• CVE-2023-51779
  • Bluetooth: af_bluetooth: Fix Use-After-Free in bt_sock_recvmsg {CVE-2023-51779}
• CVE-2023-52434
  • smb: client: fix potential OOBs in smb2_parse_contexts() {CVE-2023-52434}
• CVE-2023-52515
  • RDMA/srp: Do not call scsi_done() from srp_abort() {CVE-2023-52515}
• CVE-2023-52531
  • wifi: iwlwifi: mvm: Fix a memory corruption issue {CVE-2023-52531}
• CVE-2023-52741
  • cifs: Fix use-after-free in rdata->read_into_pages() {CVE-2023-52741}
• CVE-2023-53000
  • netlink: prevent potential spectre v1 gadgets {CVE-2023-53000}
• CVE-2023-53039
  • workqueue: Add resource managed version of delayed work init {CVE-2023-53039}
  • devm-helpers: Fix devm_delayed_work_autocancel() kerneldoc {CVE-2023-53039}
  • devm-helpers: Add resource managed version of work init {CVE-2023-53039}
  • HID: intel-ish-hid: ipc: Fix potential use-after-free in work function {CVE-2023-53039}
  • HID: intel-ish-hid: ipc: Fix dev_err usage with uninitialized dev->devc {CVE-2023-53039}
• CVE-2023-53111
  • loop: Fix use-after-free issues {CVE-2023-53111}
• CVE-2023-53254
  • cacheinfo: Fix shared_cpu_map to handle shared caches at different levels…

These are all security issues fixed in the kernel-devel-6.19.8-1.1 package on the GA media of openSUSE Tumbleweed.

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2025-39998: scsi: target: target_core_configfs: Add length check to avoid buffer overflow (bsc#1252073).
• CVE-2025-40253: s390/ctcm: Fix double-kfree (bsc#1255084).
• CVE-2025-68794: iomap: adjust read range correctly for non-block-aligned positions (bsc#1256647).
• CVE-2025-71239: audit: add fchmodat2() to change attributes class (bsc#1259759).
• CVE-2026-23072: l2tp: Fix memleak in l2tp_udp_encap_recv() (bsc#1257708).
• CVE-2026-23103: ipvlan: Make the addrs_lock be per port (bsc#1257773).
• CVE-2026-23120: l2tp: avoid one data-race in l2tp_tunnel_del_work() (bsc#1258280).
• CVE-2026-23125: sctp: move SCTP_CMD_ASSOC_SHKEY right after SCTP_CMD_PEER_INIT (bsc#1258293).
• CVE-2026-23138: kABI: Preserve values of the trace recursion bits (bsc#1258301).
• CVE-2026-23140: bpf, test_run: Subtract size of xdp_frame from allowed metadata size (bsc#1258305).
• CVE-2026-23187: pmdomain: imx8m-blk-ctrl: fix out-of-range access of bc->domains (bsc#1258330).
• CVE-2026-23193: scsi: target: iscsi: Fix use-after-free in iscsit_dec_session_usage_count() (bsc#1258414).
• CVE-2026-23201: ceph: fix oops due to invalid pointer for kfree() in parse_longname() (bsc#1258337).
• CVE-2026-23204: net: add skb_header_pointer_careful() helper (bsc#1258340).
• CVE-2026-23215: x86/vmware: Fix hypercall clobbers (bsc#1258476).
• CVE-2026-23216: scsi: target: iscsi: Fix use-after-free in iscsit_dec_conn_usage_count() (bsc#1258447).
• CVE-2026-23231: netfilter: nf_tables: fix use-after-free in nf_tables_addchain() (bsc#1259188).
• CVE-2026-23239: espintcp: Fix race condition in espintcp_close() (bsc#1259485).
• CVE-2026-23240: tls: Fix race condition in tls_sw_cancel_work_tx() (bsc#1259484).
• CVE-2026-23242: RDMA/siw: Fix potential NULL pointer dereference in header processing (bsc#1259795).
• CVE-2026-23243: RDMA/umad: Reject negative data_len in ib_umad_write (bsc#1259797).
• CVE-2026-23255: net: add proper RCU protection to /proc/net/ptype (bsc#1259891).
• CVE-2026-23262: gve: Fix stats report corruption on queue count change (bsc#1259870).
• CVE-2026-23270: net/sched: Only allow act_ct to bind to clsact/ingress qdiscs and shared blocks (bsc#1259886).
• CVE-2026-23272: netfilter: nf_tables: unconditionally bump set->nelems before insertion (bsc#1260009).
• CVE-2026-23274: netfilter: xt_IDLETIMER: reject rev0 reuse of ALARM timer labels (bsc#1260005).
• CVE-2026-23277: net/sched: teql: fix NULL pointer dereference in iptunnel_xmit on TEQL slave xmit (bsc#1259997).
• CVE-2026-23278: netfilter: nf_tables: always walk all pending catchall elements (bsc#1259998).
• CVE-2026-23281: wifi: libertas: fix use-after-free in lbs_free_adapter() (bsc#1260464).
• CVE-2026-23292: scsi: target: Fix recursive locking in __configfs_open_file() (bsc#1260500).
• CVE-2026-23293: net: vxlan: fix nd_tbl NULL dereference when IPv6 is disabled (bsc#1260486).
• CVE-2026-23297: nfsd: Fix cred ref leak in nfsd_nl_threads_set_doit() (bsc#1260490).
• CVE-2026-23304: ipv6: fix NULL pointer deref in ip6_rt_get_dev_rcu() (bsc#1260544).
• CVE-2026-23319: bpf: Fix a UAF issue in bpf_trampoline_link_cgroup_shim (bsc#1260735).
• CVE-2026-23326: xsk: Fix fragment node deletion to prevent buffer leak (bsc#1260606).
• CVE-2026-23335: RDMA/irdma: Fix kernel stack leak in irdma_create_user_ah() (bsc#1260550).
• CVE-2026-23343: xdp: produce a warning when calculated tailroom is negative (bsc#1260527).
• CVE-2026-23361: PCI: dwc: ep: Flush MSI-X write before unmapping its ATU entry (bsc#1260732).
• CVE-2026-23379: net/sched: ets: fix divide by zero in the offload path (bsc#1260481).
• CVE-2026-23381: net: bridge: fix nd_tbl NULL dereference when IPv6 is disabled (bsc#1260471).
• CVE-2026-23383: bpf, arm64: Force 8-byte alignment for JIT buffer to prevent atomic tearing (bsc#1260497).
• CVE-2026-23386: gve: fix incorrect buffer cleanup in gve_tx_clean_pending_packets…

The SUSE Linux Enterprise 15 SP7 RT kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2025-39998: scsi: target: target_core_configfs: Add length check to avoid buffer overflow (bsc#1252073).
• CVE-2025-68794: iomap: adjust read range correctly for non-block-aligned positions (bsc#1256647).
• CVE-2025-71268: btrfs: fix reservation leak in some error paths when inserting inline extent (bsc#1259865).
• CVE-2025-71269: btrfs: do not free data reservation in fallback from inline due to -ENOSPC (bsc#1259889).
• CVE-2026-23030: phy: rockchip: inno-usb2: Fix a double free bug in rockchip_usb2phy_probe() (bsc#1257561).
• CVE-2026-23047: libceph: make calc_target() set t->paused, not just clear it (bsc#1257682).
• CVE-2026-23103: ipvlan: Make the addrs_lock be per port (bsc#1257773).
• CVE-2026-23120: l2tp: avoid one data-race in l2tp_tunnel_del_work() (bsc#1258280).
• CVE-2026-23136: libceph: reset sparse-read state in osd_fault() (bsc#1258303).
• CVE-2026-23140: bpf, test_run: Subtract size of xdp_frame from allowed metadata size (bsc#1258305).
• CVE-2026-23187: pmdomain: imx8m-blk-ctrl: fix out-of-range access of bc->domains (bsc#1258330).
• CVE-2026-23193: scsi: target: iscsi: Fix use-after-free in iscsit_dec_session_usage_count() (bsc#1258414).
• CVE-2026-23201: ceph: fix oops due to invalid pointer for kfree() in parse_longname() (bsc#1258337).
• CVE-2026-23215: x86/vmware: Fix hypercall clobbers (bsc#1258476).
• CVE-2026-23216: scsi: target: iscsi: Fix use-after-free in iscsit_dec_conn_usage_count() (bsc#1258447).
• CVE-2026-23231: netfilter: nf_tables: fix use-after-free in nf_tables_addchain() (bsc#1259188).
• CVE-2026-23242: RDMA/siw: Fix potential NULL pointer dereference in header processing (bsc#1259795).
• CVE-2026-23243: RDMA/umad: Reject negative data_len in ib_umad_write (bsc#1259797).
• CVE-2026-23255: net: add proper RCU protection to /proc/net/ptype (bsc#1259891).
• CVE-2026-23259: io_uring/rw: free potentially allocated iovec on cache put failure (bsc#1259866).
• CVE-2026-23270: net/sched: Only allow act_ct to bind to clsact/ingress qdiscs and shared blocks (bsc#1259886).
• CVE-2026-23272: netfilter: nf_tables: unconditionally bump set->nelems before insertion (bsc#1260009).
• CVE-2026-23274: netfilter: xt_IDLETIMER: reject rev0 reuse of ALARM timer labels (bsc#1260005).
• CVE-2026-23277: net/sched: teql: fix NULL pointer dereference in iptunnel_xmit on TEQL slave xmit (bsc#1259997).
• CVE-2026-23278: netfilter: nf_tables: always walk all pending catchall elements (bsc#1259998).
• CVE-2026-23281: wifi: libertas: fix use-after-free in lbs_free_adapter() (bsc#1260464).
• CVE-2026-23292: scsi: target: Fix recursive locking in __configfs_open_file() (bsc#1260500).
• CVE-2026-23293: net: vxlan: fix nd_tbl NULL dereference when IPv6 is disabled (bsc#1260486).
• CVE-2026-23317: drm/vmwgfx: Return the correct value in vmw_translate_ptr functions (bsc#1260562).
• CVE-2026-23319: bpf: Fix a UAF issue in bpf_trampoline_link_cgroup_shim (bsc#1260735).
• CVE-2026-23361: PCI: dwc: ep: Flush MSI-X write before unmapping its ATU entry (bsc#1260732).
• CVE-2026-23379: net/sched: ets: fix divide by zero in the offload path (bsc#1260481).
• CVE-2026-23381: net: bridge: fix nd_tbl NULL dereference when IPv6 is disabled (bsc#1260471).
• CVE-2026-23386: gve: fix incorrect buffer cleanup in gve_tx_clean_pending_packets for QPL (bsc#1260799).
• CVE-2026-23398: icmp: fix NULL pointer dereference in icmp_tag_validation() (bsc#1260730).
• CVE-2026-23413: clsact: Fix use-after-free in init/destroy rollback asymmetry (bsc#1261498).
• CVE-2026-23414: tls: Purge async_hold in tls_decrypt_async_wait() (bsc#1261496).
• CVE-2026-31788: xen/privcmd: restrict usage in unprivileged domU (bsc#1259707).

The following non-security bugs were fixed:

• ACPI: EC: clean up handlers on probe failure in acpi_ec_setup() (git-fixes).
• ACPI: OSI: Add DMI quirk for Acer Aspire One D255 (stable-fixes). -…

The SUSE Linux Enterprise 15 SP6 kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2025-39998: scsi: target: target_core_configfs: Add length check to avoid buffer overflow (bsc#1252073).
• CVE-2026-23103: ipvlan: Make the addrs_lock be per port (bsc#1257773).
• CVE-2026-23231: netfilter: nf_tables: fix use-after-free in nf_tables_addchain() (bsc#1259188).
• CVE-2026-23243: RDMA/umad: Reject negative data_len in ib_umad_write (bsc#1259797).
• CVE-2026-23272: netfilter: nf_tables: unconditionally bump set->nelems before insertion (bsc#1260009).
• CVE-2026-23274: netfilter: xt_IDLETIMER: reject rev0 reuse of ALARM timer labels (bsc#1260005).
• CVE-2026-23278: netfilter: nf_tables: always walk all pending catchall elements (bsc#1259998).
• CVE-2026-23293: net: vxlan: fix nd_tbl NULL dereference when IPv6 is disabled (bsc#1260486).
• CVE-2026-23317: drm/vmwgfx: Return the correct value in vmw_translate_ptr functions (bsc#1260562).
• CVE-2026-23381: net: bridge: fix nd_tbl NULL dereference when IPv6 is disabled (bsc#1260471).
• CVE-2026-23398: icmp: fix NULL pointer dereference in icmp_tag_validation() (bsc#1260730).
• CVE-2026-23412: netfilter: bpf: defer hook memory release until rcu readers are done (bsc#1261412).
• CVE-2026-23413: clsact: Fix use-after-free in init/destroy rollback asymmetry (bsc#1261498).
• CVE-2026-31788: xen/privcmd: restrict usage in unprivileged domU (bsc#1259707).

The following non security issues were fixed:

• KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE (bsc#1259461).
• KVM: x86/mmu: Retry fault before acquiring mmu_lock if mapping is changing (bsc#1253122).
• net: mana: fix use-after-free in add_adev() error path (git-fixes).
• net: mana: Trigger VF reset/recovery on health check failure due to HWC timeout (bsc#1259580).
• x86/platform/uv: Handle deconfigured sockets (bsc#1260347).
• xen/privcmd: unregister xenstore notifier on module exit (git-fixes).

The SUSE Linux Enterprise 15 SP7 kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2025-39998: scsi: target: target_core_configfs: Add length check to avoid buffer overflow (bsc#1252073).
• CVE-2025-68794: iomap: adjust read range correctly for non-block-aligned positions (bsc#1256647).
• CVE-2025-71268: btrfs: fix reservation leak in some error paths when inserting inline extent (bsc#1259865).
• CVE-2025-71269: btrfs: do not free data reservation in fallback from inline due to -ENOSPC (bsc#1259889).
• CVE-2026-23030: phy: rockchip: inno-usb2: Fix a double free bug in rockchip_usb2phy_probe() (bsc#1257561).
• CVE-2026-23047: libceph: make calc_target() set t->paused, not just clear it (bsc#1257682).
• CVE-2026-23103: ipvlan: Make the addrs_lock be per port (bsc#1257773).
• CVE-2026-23120: l2tp: avoid one data-race in l2tp_tunnel_del_work() (bsc#1258280).
• CVE-2026-23136: libceph: reset sparse-read state in osd_fault() (bsc#1258303).
• CVE-2026-23140: bpf, test_run: Subtract size of xdp_frame from allowed metadata size (bsc#1258305).
• CVE-2026-23187: pmdomain: imx8m-blk-ctrl: fix out-of-range access of bc->domains (bsc#1258330).
• CVE-2026-23193: scsi: target: iscsi: Fix use-after-free in iscsit_dec_session_usage_count() (bsc#1258414).
• CVE-2026-23201: ceph: fix oops due to invalid pointer for kfree() in parse_longname() (bsc#1258337).
• CVE-2026-23215: x86/vmware: Fix hypercall clobbers (bsc#1258476).
• CVE-2026-23216: scsi: target: iscsi: Fix use-after-free in iscsit_dec_conn_usage_count() (bsc#1258447).
• CVE-2026-23231: netfilter: nf_tables: register hooks last when adding new chain/flowtable (bsc#1259188).
• CVE-2026-23242: RDMA/siw: Fix potential NULL pointer dereference in header processing (bsc#1259795).
• CVE-2026-23243: RDMA/umad: Reject negative data_len in ib_umad_write (bsc#1259797).
• CVE-2026-23255: net: add proper RCU protection to /proc/net/ptype (bsc#1259891).
• CVE-2026-23259: io_uring/rw: free potentially allocated iovec on cache put failure (bsc#1259866).
• CVE-2026-23270: net/sched: Only allow act_ct to bind to clsact/ingress qdiscs and shared blocks (bsc#1259886).
• CVE-2026-23272: netfilter: nf_tables: unconditionally bump set->nelems before insertion (bsc#1260009).
• CVE-2026-23274: netfilter: xt_IDLETIMER: reject rev0 reuse of ALARM timer labels (bsc#1260005).
• CVE-2026-23277: net/sched: teql: fix NULL pointer dereference in iptunnel_xmit on TEQL slave xmit (bsc#1259997).
• CVE-2026-23278: netfilter: nf_tables: always walk all pending catchall elements (bsc#1259998).
• CVE-2026-23281: wifi: libertas: fix use-after-free in lbs_free_adapter() (bsc#1260464).
• CVE-2026-23292: scsi: target: Fix recursive locking in __configfs_open_file() (bsc#1260500).
• CVE-2026-23293: net: vxlan: fix nd_tbl NULL dereference when IPv6 is disabled (bsc#1260486).
• CVE-2026-23317: drm/vmwgfx: Return the correct value in vmw_translate_ptr functions (bsc#1260562).
• CVE-2026-23319: bpf: export bpf_link_inc_not_zero (bsc#1260735).
• CVE-2026-23361: PCI: dwc: ep: Flush MSI-X write before unmapping its ATU entry (bsc#1260732).
• CVE-2026-23379: net/sched: ets: fix divide by zero in the offload path (bsc#1260481).
• CVE-2026-23381: net: bridge: fix nd_tbl NULL dereference when IPv6 is disabled (bsc#1260471).
• CVE-2026-23386: gve: fix incorrect buffer cleanup in gve_tx_clean_pending_packets for QPL (bsc#1260799).
• CVE-2026-23398: icmp: fix NULL pointer dereference in icmp_tag_validation() (bsc#1260730).
• CVE-2026-23413: clsact: Fix use-after-free in init/destroy rollback asymmetry (bsc#1261498).
• CVE-2026-23414: tls: Purge async_hold in tls_decrypt_async_wait() (bsc#1261496).
• CVE-2026-31788: xen/privcmd: restrict usage in unprivileged domU (bsc#1259707).

The following non security issues were fixed:

• accel/qaic: Handle DBC deactivation if the owner went away (git-fixes).
• ACPI: EC: clean up handlers on probe failure in acpi_ec_setup() (git-fixes).
• ACPI: OSI: Add…

The SUSE Linux Enterprise Micro 6.0 and 6.1 kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2024-38542: RDMA/mana_ib: boundary check before installing cq callbacks (bsc#1226591).
• CVE-2025-39817: efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare (bsc#1249998).
• CVE-2025-39998: scsi: target: target_core_configfs: Add length check to avoid buffer overflow (bsc#1252073).
• CVE-2025-40201: kernel/sys.c: fix the racy usage of task_lock(tsk->group_leader) in sys_prlimit64() paths (bsc#1253455).
• CVE-2025-40253: s390/ctcm: Fix double-kfree (bsc#1255084).
• CVE-2025-68794: iomap: adjust read range correctly for non-block-aligned positions (bsc#1256647).
• CVE-2025-71125: tracing: Do not register unsupported perf events (bsc#1256784).
• CVE-2025-71268: btrfs: fix reservation leak in some error paths when inserting inline extent (bsc#1259865).
• CVE-2025-71269: btrfs: do not free data reservation in fallback from inline due to -ENOSPC (bsc#1259889).
• CVE-2026-23030: phy: rockchip: inno-usb2: Fix a double free bug in rockchip_usb2phy_probe() (bsc#1257561).
• CVE-2026-23047: libceph: make calc_target() set t->paused, not just clear it (bsc#1257682).
• CVE-2026-23069: vsock/virtio: fix potential underflow in virtio_transport_get_credit() (bsc#1257755).
• CVE-2026-23088: tracing: Fix crash on synthetic stacktrace field usage (bsc#1257814).
• CVE-2026-23103: ipvlan: Make the addrs_lock be per port (bsc#1257773).
• CVE-2026-23120: l2tp: avoid one data-race in l2tp_tunnel_del_work() (bsc#1258280).
• CVE-2026-23125: sctp: move SCTP_CMD_ASSOC_SHKEY right after SCTP_CMD_PEER_INIT (bsc#1258293).
• CVE-2026-23136: libceph: reset sparse-read state in osd_fault() (bsc#1258303).
• CVE-2026-23140: bpf, test_run: Subtract size of xdp_frame from allowed metadata size (bsc#1258305).
• CVE-2026-23154: net: fix segmentation of forwarding fraglist GRO (bsc#1258286).
• CVE-2026-23169: mptcp: fix race in mptcp_pm_nl_flush_addrs_doit() (bsc#1258389).
• CVE-2026-23187: pmdomain: imx8m-blk-ctrl: fix out-of-range access of bc->domains (bsc#1258330).
• CVE-2026-23193: scsi: target: iscsi: Fix use-after-free in iscsit_dec_session_usage_count() (bsc#1258414).
• CVE-2026-23201: ceph: fix oops due to invalid pointer for kfree() in parse_longname() (bsc#1258337).
• CVE-2026-23204: net/sched: cls_u32: use skb_header_pointer_careful() (bsc#1258340).
• CVE-2026-23216: scsi: target: iscsi: Fix use-after-free in iscsit_dec_conn_usage_count() (bsc#1258447).
• CVE-2026-23231: netfilter: nf_tables: fix use-after-free in nf_tables_addchain() (bsc#1259188).
• CVE-2026-23242: RDMA/siw: Fix potential NULL pointer dereference in header processing (bsc#1259795).
• CVE-2026-23243: RDMA/umad: Reject negative data_len in ib_umad_write (bsc#1259797).
• CVE-2026-23255: net: add proper RCU protection to /proc/net/ptype (bsc#1259891).
• CVE-2026-23262: gve: Fix stats report corruption on queue count change (bsc#1259870).
• CVE-2026-23270: net/sched: Only allow act_ct to bind to clsact/ingress qdiscs and shared blocks (bsc#1259886).
• CVE-2026-23272: netfilter: nf_tables: unconditionally bump set->nelems before insertion (bsc#1260009).
• CVE-2026-23274: netfilter: xt_IDLETIMER: reject rev0 reuse of ALARM timer labels (bsc#1260005).
• CVE-2026-23277: net/sched: teql: fix NULL pointer dereference in iptunnel_xmit on TEQL slave xmit (bsc#1259997).
• CVE-2026-23278: netfilter: nf_tables: always walk all pending catchall elements (bsc#1259998).
• CVE-2026-23281: wifi: libertas: fix use-after-free in lbs_free_adapter() (bsc#1260464).
• CVE-2026-23292: scsi: target: Fix recursive locking in __configfs_open_file() (bsc#1260500).
• CVE-2026-23293: net: vxlan: fix nd_tbl NULL dereference when IPv6 is disabled (bsc#1260486).
• CVE-2026-23304: ipv6: fix NULL pointer deref in ip6_rt_get_dev_rcu() (bsc#1260544).
• CVE-2026-23317: drm/vmwgfx: Return the correct value in vmw_translate_ptr functions (bsc#1260562).
• CVE-2026-23319: bpf:…

The SUSE Linux Enterprise Micro 6.0 and 6.1 kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2024-38542: RDMA/mana_ib: boundary check before installing cq callbacks (bsc#1226591).
• CVE-2025-39817: efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare (bsc#1249998).
• CVE-2025-39998: scsi: target: target_core_configfs: Add length check to avoid buffer overflow (bsc#1252073).
• CVE-2025-40201: kernel/sys.c: fix the racy usage of task_lock(tsk->group_leader) in sys_prlimit64() paths (bsc#1253455).
• CVE-2025-40253: s390/ctcm: Fix double-kfree (bsc#1255084).
• CVE-2025-68794: iomap: adjust read range correctly for non-block-aligned positions (bsc#1256647).
• CVE-2025-71125: tracing: Do not register unsupported perf events (bsc#1256784).
• CVE-2025-71268: btrfs: fix reservation leak in some error paths when inserting inline extent (bsc#1259865).
• CVE-2025-71269: btrfs: do not free data reservation in fallback from inline due to -ENOSPC (bsc#1259889).
• CVE-2026-23030: phy: rockchip: inno-usb2: Fix a double free bug in rockchip_usb2phy_probe() (bsc#1257561).
• CVE-2026-23047: libceph: make calc_target() set t->paused, not just clear it (bsc#1257682).
• CVE-2026-23069: vsock/virtio: fix potential underflow in virtio_transport_get_credit() (bsc#1257755).
• CVE-2026-23088: tracing: Fix crash on synthetic stacktrace field usage (bsc#1257814).
• CVE-2026-23103: ipvlan: Make the addrs_lock be per port (bsc#1257773).
• CVE-2026-23120: l2tp: avoid one data-race in l2tp_tunnel_del_work() (bsc#1258280).
• CVE-2026-23125: sctp: move SCTP_CMD_ASSOC_SHKEY right after SCTP_CMD_PEER_INIT (bsc#1258293).
• CVE-2026-23136: libceph: reset sparse-read state in osd_fault() (bsc#1258303).
• CVE-2026-23140: bpf, test_run: Subtract size of xdp_frame from allowed metadata size (bsc#1258305).
• CVE-2026-23154: net: fix segmentation of forwarding fraglist GRO (bsc#1258286).
• CVE-2026-23169: mptcp: fix race in mptcp_pm_nl_flush_addrs_doit() (bsc#1258389).
• CVE-2026-23187: pmdomain: imx8m-blk-ctrl: fix out-of-range access of bc->domains (bsc#1258330).
• CVE-2026-23193: scsi: target: iscsi: Fix use-after-free in iscsit_dec_session_usage_count() (bsc#1258414).
• CVE-2026-23201: ceph: fix oops due to invalid pointer for kfree() in parse_longname() (bsc#1258337).
• CVE-2026-23204: net/sched: cls_u32: use skb_header_pointer_careful() (bsc#1258340).
• CVE-2026-23216: scsi: target: iscsi: Fix use-after-free in iscsit_dec_conn_usage_count() (bsc#1258447).
• CVE-2026-23231: netfilter: nf_tables: fix use-after-free in nf_tables_addchain() (bsc#1259188).
• CVE-2026-23242: RDMA/siw: Fix potential NULL pointer dereference in header processing (bsc#1259795).
• CVE-2026-23243: RDMA/umad: Reject negative data_len in ib_umad_write (bsc#1259797).
• CVE-2026-23255: net: add proper RCU protection to /proc/net/ptype (bsc#1259891).
• CVE-2026-23262: gve: Fix stats report corruption on queue count change (bsc#1259870).
• CVE-2026-23270: net/sched: Only allow act_ct to bind to clsact/ingress qdiscs and shared blocks (bsc#1259886).
• CVE-2026-23272: netfilter: nf_tables: unconditionally bump set->nelems before insertion (bsc#1260009).
• CVE-2026-23274: netfilter: xt_IDLETIMER: reject rev0 reuse of ALARM timer labels (bsc#1260005).
• CVE-2026-23277: net/sched: teql: fix NULL pointer dereference in iptunnel_xmit on TEQL slave xmit (bsc#1259997).
• CVE-2026-23278: netfilter: nf_tables: always walk all pending catchall elements (bsc#1259998).
• CVE-2026-23281: wifi: libertas: fix use-after-free in lbs_free_adapter() (bsc#1260464).
• CVE-2026-23292: scsi: target: Fix recursive locking in __configfs_open_file() (bsc#1260500).
• CVE-2026-23293: net: vxlan: fix nd_tbl NULL dereference when IPv6 is disabled (bsc#1260486).
• CVE-2026-23304: ipv6: fix NULL pointer deref in ip6_rt_get_dev_rcu() (bsc#1260544).
• CVE-2026-23317: drm/vmwgfx: Return the correct value in vmw_translate_ptr functions (bsc#1260562).
• CVE-2026-23319: bpf:…

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2025-39998: scsi: target: target_core_configfs: Add length check to avoid buffer overflow (bsc#1252073).
• CVE-2025-40253: s390/ctcm: Fix double-kfree (bsc#1255084).
• CVE-2025-68794: iomap: adjust read range correctly for non-block-aligned positions (bsc#1256647).
• CVE-2025-71239: audit: add fchmodat2() to change attributes class (bsc#1259759).
• CVE-2026-23072: l2tp: Fix memleak in l2tp_udp_encap_recv() (bsc#1257708).
• CVE-2026-23103: ipvlan: Make the addrs_lock be per port (bsc#1257773).
• CVE-2026-23120: l2tp: avoid one data-race in l2tp_tunnel_del_work() (bsc#1258280).
• CVE-2026-23125: sctp: move SCTP_CMD_ASSOC_SHKEY right after SCTP_CMD_PEER_INIT (bsc#1258293).
• CVE-2026-23138: kABI: Preserve values of the trace recursion bits (bsc#1258301).
• CVE-2026-23140: bpf, test_run: Subtract size of xdp_frame from allowed metadata size (bsc#1258305).
• CVE-2026-23187: pmdomain: imx8m-blk-ctrl: fix out-of-range access of bc->domains (bsc#1258330).
• CVE-2026-23193: scsi: target: iscsi: Fix use-after-free in iscsit_dec_session_usage_count() (bsc#1258414).
• CVE-2026-23201: ceph: fix oops due to invalid pointer for kfree() in parse_longname() (bsc#1258337).
• CVE-2026-23204: net: add skb_header_pointer_careful() helper (bsc#1258340).
• CVE-2026-23215: x86/vmware: Fix hypercall clobbers (bsc#1258476).
• CVE-2026-23216: scsi: target: iscsi: Fix use-after-free in iscsit_dec_conn_usage_count() (bsc#1258447).
• CVE-2026-23231: netfilter: nf_tables: fix use-after-free in nf_tables_addchain() (bsc#1259188).
• CVE-2026-23239: espintcp: Fix race condition in espintcp_close() (bsc#1259485).
• CVE-2026-23240: tls: Fix race condition in tls_sw_cancel_work_tx() (bsc#1259484).
• CVE-2026-23242: RDMA/siw: Fix potential NULL pointer dereference in header processing (bsc#1259795).
• CVE-2026-23243: RDMA/umad: Reject negative data_len in ib_umad_write (bsc#1259797).
• CVE-2026-23255: net: add proper RCU protection to /proc/net/ptype (bsc#1259891).
• CVE-2026-23262: gve: Fix stats report corruption on queue count change (bsc#1259870).
• CVE-2026-23270: net/sched: Only allow act_ct to bind to clsact/ingress qdiscs and shared blocks (bsc#1259886).
• CVE-2026-23272: netfilter: nf_tables: unconditionally bump set->nelems before insertion (bsc#1260009).
• CVE-2026-23274: netfilter: xt_IDLETIMER: reject rev0 reuse of ALARM timer labels (bsc#1260005).
• CVE-2026-23277: net/sched: teql: fix NULL pointer dereference in iptunnel_xmit on TEQL slave xmit (bsc#1259997).
• CVE-2026-23278: netfilter: nf_tables: always walk all pending catchall elements (bsc#1259998).
• CVE-2026-23281: wifi: libertas: fix use-after-free in lbs_free_adapter() (bsc#1260464).
• CVE-2026-23292: scsi: target: Fix recursive locking in __configfs_open_file() (bsc#1260500).
• CVE-2026-23293: net: vxlan: fix nd_tbl NULL dereference when IPv6 is disabled (bsc#1260486).
• CVE-2026-23297: nfsd: Fix cred ref leak in nfsd_nl_threads_set_doit() (bsc#1260490).
• CVE-2026-23304: ipv6: fix NULL pointer deref in ip6_rt_get_dev_rcu() (bsc#1260544).
• CVE-2026-23319: bpf: Fix a UAF issue in bpf_trampoline_link_cgroup_shim (bsc#1260735).
• CVE-2026-23326: xsk: Fix fragment node deletion to prevent buffer leak (bsc#1260606).
• CVE-2026-23335: RDMA/irdma: Fix kernel stack leak in irdma_create_user_ah() (bsc#1260550).
• CVE-2026-23343: xdp: produce a warning when calculated tailroom is negative (bsc#1260527).
• CVE-2026-23361: PCI: dwc: ep: Flush MSI-X write before unmapping its ATU entry (bsc#1260732).
• CVE-2026-23379: net/sched: ets: fix divide by zero in the offload path (bsc#1260481).
• CVE-2026-23381: net: bridge: fix nd_tbl NULL dereference when IPv6 is disabled (bsc#1260471).
• CVE-2026-23383: bpf, arm64: Force 8-byte alignment for JIT buffer to prevent atomic tearing (bsc#1260497).
• CVE-2026-23386: gve: fix incorrect buffer cleanup in gve_tx_clean_pending_packets…

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2025-39998: scsi: target: target_core_configfs: Add length check to avoid buffer overflow (bsc#1252073).
• CVE-2025-40253: s390/ctcm: Fix double-kfree (bsc#1255084).
• CVE-2025-68794: iomap: adjust read range correctly for non-block-aligned positions (bsc#1256647).
• CVE-2025-71239: audit: add fchmodat2() to change attributes class (bsc#1259759).
• CVE-2026-23072: l2tp: Fix memleak in l2tp_udp_encap_recv() (bsc#1257708).
• CVE-2026-23103: ipvlan: Make the addrs_lock be per port (bsc#1257773).
• CVE-2026-23120: l2tp: avoid one data-race in l2tp_tunnel_del_work() (bsc#1258280).
• CVE-2026-23125: sctp: move SCTP_CMD_ASSOC_SHKEY right after SCTP_CMD_PEER_INIT (bsc#1258293).
• CVE-2026-23138: kABI: Preserve values of the trace recursion bits (bsc#1258301).
• CVE-2026-23140: bpf, test_run: Subtract size of xdp_frame from allowed metadata size (bsc#1258305).
• CVE-2026-23187: pmdomain: imx8m-blk-ctrl: fix out-of-range access of bc->domains (bsc#1258330).
• CVE-2026-23193: scsi: target: iscsi: Fix use-after-free in iscsit_dec_session_usage_count() (bsc#1258414).
• CVE-2026-23201: ceph: fix oops due to invalid pointer for kfree() in parse_longname() (bsc#1258337).
• CVE-2026-23204: net: add skb_header_pointer_careful() helper (bsc#1258340).
• CVE-2026-23215: x86/vmware: Fix hypercall clobbers (bsc#1258476).
• CVE-2026-23216: scsi: target: iscsi: Fix use-after-free in iscsit_dec_conn_usage_count() (bsc#1258447).
• CVE-2026-23231: netfilter: nf_tables: fix use-after-free in nf_tables_addchain() (bsc#1259188).
• CVE-2026-23239: espintcp: Fix race condition in espintcp_close() (bsc#1259485).
• CVE-2026-23240: tls: Fix race condition in tls_sw_cancel_work_tx() (bsc#1259484).
• CVE-2026-23242: RDMA/siw: Fix potential NULL pointer dereference in header processing (bsc#1259795).
• CVE-2026-23243: RDMA/umad: Reject negative data_len in ib_umad_write (bsc#1259797).
• CVE-2026-23255: net: add proper RCU protection to /proc/net/ptype (bsc#1259891).
• CVE-2026-23262: gve: Fix stats report corruption on queue count change (bsc#1259870).
• CVE-2026-23270: net/sched: Only allow act_ct to bind to clsact/ingress qdiscs and shared blocks (bsc#1259886).
• CVE-2026-23272: netfilter: nf_tables: unconditionally bump set->nelems before insertion (bsc#1260009).
• CVE-2026-23274: netfilter: xt_IDLETIMER: reject rev0 reuse of ALARM timer labels (bsc#1260005).
• CVE-2026-23277: net/sched: teql: fix NULL pointer dereference in iptunnel_xmit on TEQL slave xmit (bsc#1259997).
• CVE-2026-23278: netfilter: nf_tables: always walk all pending catchall elements (bsc#1259998).
• CVE-2026-23281: wifi: libertas: fix use-after-free in lbs_free_adapter() (bsc#1260464).
• CVE-2026-23292: scsi: target: Fix recursive locking in __configfs_open_file() (bsc#1260500).
• CVE-2026-23293: net: vxlan: fix nd_tbl NULL dereference when IPv6 is disabled (bsc#1260486).
• CVE-2026-23297: nfsd: Fix cred ref leak in nfsd_nl_threads_set_doit() (bsc#1260490).
• CVE-2026-23304: ipv6: fix NULL pointer deref in ip6_rt_get_dev_rcu() (bsc#1260544).
• CVE-2026-23319: bpf: Fix a UAF issue in bpf_trampoline_link_cgroup_shim (bsc#1260735).
• CVE-2026-23326: xsk: Fix fragment node deletion to prevent buffer leak (bsc#1260606).
• CVE-2026-23335: RDMA/irdma: Fix kernel stack leak in irdma_create_user_ah() (bsc#1260550).
• CVE-2026-23343: xdp: produce a warning when calculated tailroom is negative (bsc#1260527).
• CVE-2026-23361: PCI: dwc: ep: Flush MSI-X write before unmapping its ATU entry (bsc#1260732).
• CVE-2026-23379: net/sched: ets: fix divide by zero in the offload path (bsc#1260481).
• CVE-2026-23381: net: bridge: fix nd_tbl NULL dereference when IPv6 is disabled (bsc#1260471).
• CVE-2026-23383: bpf, arm64: Force 8-byte alignment for JIT buffer to prevent atomic tearing (bsc#1260497).
• CVE-2026-23386: gve: fix incorrect buffer cleanup in gve_tx_clean_pending_packets…

The SUSE Linux Micro (RT) 6.0 and 6.1 kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2024-38542: RDMA/mana_ib: boundary check before installing cq callbacks (bsc#1226591).
• CVE-2025-39817: efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare (bsc#1249998).
• CVE-2025-39998: scsi: target: target_core_configfs: Add length check to avoid buffer overflow (bsc#1252073).
• CVE-2025-40201: kernel/sys.c: fix the racy usage of task_lock(tsk->group_leader) in sys_prlimit64() paths (bsc#1253455).
• CVE-2025-40253: s390/ctcm: Fix double-kfree (bsc#1255084).
• CVE-2025-68794: iomap: adjust read range correctly for non-block-aligned positions (bsc#1256647).
• CVE-2025-71125: tracing: Do not register unsupported perf events (bsc#1256784).
• CVE-2025-71268: btrfs: fix reservation leak in some error paths when inserting inline extent (bsc#1259865).
• CVE-2025-71269: btrfs: do not free data reservation in fallback from inline due to -ENOSPC (bsc#1259889).
• CVE-2026-23030: phy: rockchip: inno-usb2: Fix a double free bug in rockchip_usb2phy_probe() (bsc#1257561).
• CVE-2026-23047: libceph: make calc_target() set t->paused, not just clear it (bsc#1257682).
• CVE-2026-23069: vsock/virtio: fix potential underflow in virtio_transport_get_credit() (bsc#1257755).
• CVE-2026-23088: tracing: Fix crash on synthetic stacktrace field usage (bsc#1257814).
• CVE-2026-23103: ipvlan: Make the addrs_lock be per port (bsc#1257773).
• CVE-2026-23120: l2tp: avoid one data-race in l2tp_tunnel_del_work() (bsc#1258280).
• CVE-2026-23125: sctp: move SCTP_CMD_ASSOC_SHKEY right after SCTP_CMD_PEER_INIT (bsc#1258293).
• CVE-2026-23136: libceph: reset sparse-read state in osd_fault() (bsc#1258303).
• CVE-2026-23140: bpf, test_run: Subtract size of xdp_frame from allowed metadata size (bsc#1258305).
• CVE-2026-23154: net: fix segmentation of forwarding fraglist GRO (bsc#1258286).
• CVE-2026-23169: mptcp: fix race in mptcp_pm_nl_flush_addrs_doit() (bsc#1258389).
• CVE-2026-23187: pmdomain: imx8m-blk-ctrl: fix out-of-range access of bc->domains (bsc#1258330).
• CVE-2026-23193: scsi: target: iscsi: Fix use-after-free in iscsit_dec_session_usage_count() (bsc#1258414).
• CVE-2026-23201: ceph: fix oops due to invalid pointer for kfree() in parse_longname() (bsc#1258337).
• CVE-2026-23204: net/sched: cls_u32: use skb_header_pointer_careful() (bsc#1258340).
• CVE-2026-23216: scsi: target: iscsi: Fix use-after-free in iscsit_dec_conn_usage_count() (bsc#1258447).
• CVE-2026-23231: netfilter: nf_tables: register hooks last when adding new chain/flowtable (bsc#1259188).
• CVE-2026-23242: RDMA/siw: Fix potential NULL pointer dereference in header processing (bsc#1259795).
• CVE-2026-23243: RDMA/umad: Reject negative data_len in ib_umad_write (bsc#1259797).
• CVE-2026-23255: net: add proper RCU protection to /proc/net/ptype (bsc#1259891).
• CVE-2026-23262: gve: Fix stats report corruption on queue count change (bsc#1259870).
• CVE-2026-23270: net/sched: Only allow act_ct to bind to clsact/ingress qdiscs and shared blocks (bsc#1259886).
• CVE-2026-23272: netfilter: nf_tables: unconditionally bump set->nelems before insertion (bsc#1260009).
• CVE-2026-23274: netfilter: xt_IDLETIMER: reject rev0 reuse of ALARM timer labels (bsc#1260005).
• CVE-2026-23277: net/sched: teql: fix NULL pointer dereference in iptunnel_xmit on TEQL slave xmit (bsc#1259997).
• CVE-2026-23278: netfilter: nf_tables: always walk all pending catchall elements (bsc#1259998).
• CVE-2026-23281: wifi: libertas: fix use-after-free in lbs_free_adapter() (bsc#1260464).
• CVE-2026-23292: scsi: target: Fix recursive locking in __configfs_open_file() (bsc#1260500).
• CVE-2026-23293: net: vxlan: fix nd_tbl NULL dereference when IPv6 is disabled (bsc#1260486).
• CVE-2026-23304: ipv6: fix NULL pointer deref in ip6_rt_get_dev_rcu() (bsc#1260544).
• CVE-2026-23317: drm/vmwgfx: Return the correct value in vmw_translate_ptr functions (bsc#1260562).
• CVE-2026-23319: bpf: export…